Digital clock



FIG. 1 is a top front isometric view of a digital clock showing my new design;

FIG. 2 is a front elevational view, the rear being a mirror image thereof;

FIG. 3 is a right side elevational view, the left side being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a right side elevational view thereof in an alternate position.

The view from the rear is identical to the view from the front; the view from the opposite side is identical to the view from the one side. 

The ornamental design for a digital clock, as shown and described. 